void FObjectPropertyNode::InternalInitChildNodes( FName SinglePropertyName )
{
HiddenCategories.Empty();
// Assemble a list of category names by iterating over all fields of BaseClass.
// build a list of classes that we need to look at
TSet<UClass*> ClassesToConsider;
for( int32 i = 0; i < GetNumObjects(); ++i )
{
UObject* TempObject = GetUObject( i );
if( TempObject )
{
ClassesToConsider.Add( TempObject->GetClass() );
}
}
const bool bShouldShowHiddenProperties = !!HasNodeFlags(EPropertyNodeFlags::ShouldShowHiddenProperties);
const bool bShouldShowDisableEditOnInstance = !!HasNodeFlags(EPropertyNodeFlags::ShouldShowDisableEditOnInstance);
TSet<FName> Categories;
for( TFieldIterator<UProperty> It(BaseClass.Get()); It; ++It )
{
bool bHidden = false;
FName CategoryName = FObjectEditorUtils::GetCategoryFName(*It);
for( UClass* Class : ClassesToConsider )
{
if( FEditorCategoryUtils::IsCategoryHiddenFromClass(Class, CategoryName.ToString()) )
{
HiddenCategories.Add( CategoryName );
bHidden = true;
break;
}
}
bool bMetaDataAllowVisible = true;
FString MetaDataVisibilityCheckString = It->GetMetaData(TEXT("bShowOnlyWhenTrue"));
if (MetaDataVisibilityCheckString.Len())
{
//ensure that the metadata visibility string is actually set to true in order to show this property
GConfig->GetBool(TEXT("UnrealEd.PropertyFilters"), *MetaDataVisibilityCheckString, bMetaDataAllowVisible, GEditorUserSettingsIni);
}
if (bMetaDataAllowVisible)
{
const bool bShowIfNonHiddenEditableProperty = (*It)->HasAnyPropertyFlags(CPF_Edit) && !bHidden;
const bool bShowIfDisableEditOnInstance = !(*It)->HasAnyPropertyFlags(CPF_DisableEditOnInstance) || bShouldShowDisableEditOnInstance;
if( bShouldShowHiddenProperties || (bShowIfNonHiddenEditableProperty && bShowIfDisableEditOnInstance) )
{
Categories.Add( CategoryName );
}
}
}
//////////////////////////////////////////
// Add the category headers and the child items that belong inside of them.
// Only show category headers if this is the top level object window and the parent window allows headers.
if( HasNodeFlags(EPropertyNodeFlags::ShowCategories) )
{
FString CategoryDelimiterString;
CategoryDelimiterString.AppendChar( FPropertyNodeConstants::CategoryDelimiterChar );
TArray< FPropertyNode* > ParentNodesToSort;
for( const FName& FullCategoryPath : Categories )
{
// Figure out the nesting level for this category
TArray< FString > FullCategoryPathStrings;
FullCategoryPath.ToString().ParseIntoArray( FullCategoryPathStrings, *CategoryDelimiterString, true );
TSharedPtr<FPropertyNode> ParentLevelNode = SharedThis(this);
FString CurCategoryPathString;
for( int32 PathLevelIndex = 0; PathLevelIndex < FullCategoryPathStrings.Num(); ++PathLevelIndex )
{
// Build up the category path name for the current path level index
if( CurCategoryPathString.Len() != 0 )
{
CurCategoryPathString += FPropertyNodeConstants::CategoryDelimiterChar;
}
CurCategoryPathString += FullCategoryPathStrings[ PathLevelIndex ];
const FName CategoryName( *CurCategoryPathString );
// Check to see if we've already created a category at the specified path level
bool bFoundMatchingCategory = false;
{
for( int32 CurNodeIndex = 0; CurNodeIndex < ParentLevelNode->GetNumChildNodes(); ++CurNodeIndex )
{
TSharedPtr<FPropertyNode>& ChildNode = ParentLevelNode->GetChildNode( CurNodeIndex );
check( ChildNode.IsValid() );
// Is this a category node?
FCategoryPropertyNode* ChildCategoryNode = ChildNode->AsCategoryNode();
if( ChildCategoryNode != NULL )
{
// Does the name match?
if( ChildCategoryNode->GetCategoryName() == CategoryName )
{
// Descend by using the child node as the new parent
bFoundMatchingCategory = true;
ParentLevelNode = ChildNode;
break;
}
}
}
}
// If we didn't find the category, then we'll need to create it now!
if( !bFoundMatchingCategory )
{
// Create the category node and assign it to its parent node
TSharedPtr<FCategoryPropertyNode> NewCategoryNode( new FCategoryPropertyNode );
{
NewCategoryNode->SetCategoryName( CategoryName );
FPropertyNodeInitParams InitParams;
InitParams.ParentNode = ParentLevelNode;
InitParams.Property = NULL;
InitParams.ArrayOffset = 0;
InitParams.ArrayIndex = INDEX_NONE;
InitParams.bAllowChildren = true;
InitParams.bForceHiddenPropertyVisibility = bShouldShowHiddenProperties;
InitParams.bCreateDisableEditOnInstanceNodes = bShouldShowDisableEditOnInstance;
NewCategoryNode->InitNode( InitParams );
// Recursively expand category properties if the category has been flagged for auto-expansion.
if (BaseClass->IsAutoExpandCategory(*CategoryName.ToString())
&& !BaseClass->IsAutoCollapseCategory(*CategoryName.ToString()))
{
NewCategoryNode->SetNodeFlags(EPropertyNodeFlags::Expanded, true);
}
// Add this node to it's parent. Note that no sorting happens here, so the parent's
// list of child nodes will not be in the correct order. We'll keep track of which
// nodes we added children to so we can sort them after we're finished adding new nodes.
ParentLevelNode->AddChildNode(NewCategoryNode);
ParentNodesToSort.AddUnique( ParentLevelNode.Get() );
}
// Descend into the newly created category by using this node as the new parent
ParentLevelNode = NewCategoryNode;
}
}
}
}
else
{
// Iterate over all fields, creating items.
for( TFieldIterator<UProperty> It(BaseClass.Get()); It; ++It )
{
const bool bShowIfNonHiddenEditableProperty = (*It)->HasAnyPropertyFlags(CPF_Edit) && !FEditorCategoryUtils::IsCategoryHiddenFromClass(BaseClass.Get(), FObjectEditorUtils::GetCategory(*It));
const bool bShowIfDisableEditOnInstance = !(*It)->HasAnyPropertyFlags(CPF_DisableEditOnInstance) || bShouldShowDisableEditOnInstance;
if (bShouldShowHiddenProperties || (bShowIfNonHiddenEditableProperty && bShowIfDisableEditOnInstance))
{
UProperty* CurProp = *It;
if( SinglePropertyName == NAME_None || CurProp->GetFName() == SinglePropertyName )
{
TSharedPtr<FItemPropertyNode> NewItemNode( new FItemPropertyNode );
FPropertyNodeInitParams InitParams;
InitParams.ParentNode = SharedThis(this);
InitParams.Property = CurProp;
InitParams.ArrayOffset = 0;
InitParams.ArrayIndex = INDEX_NONE;
InitParams.bAllowChildren = SinglePropertyName == NAME_None;
InitParams.bForceHiddenPropertyVisibility = bShouldShowHiddenProperties;
InitParams.bCreateDisableEditOnInstanceNodes = bShouldShowDisableEditOnInstance;
NewItemNode->InitNode( InitParams );
AddChildNode(NewItemNode);
if( SinglePropertyName != NAME_None )
{
// Generate no other children
break;
}
}
}
}
}
}
